	GASLIFT AUTOMATED FACILITY TO CONTROL GAS FLOW BASED ON A GASLIFT METHOD OF OIL PRODUCTION
	GASLIFT AUTOMATED CONTROL SYSTEM

INTRODUCTION

The gas lift production method is currently considered to be the most promising method of oil and gas production. It makes use of the energy saving technologies of oil production, based on the use of the natural energy carried by gas: oil associated gas, cap gas and fiery seam gas, using different gas lift techniques, both continuous and periodical.

In addition, compressor-free gas lift excludes the use of expensive compressors and consumption of electric energy necessary to drive them. The method may be especially effective for South Asian gas deposits, characterized by the high-pressure gas resources in the amounts that satisfy the demand for gas deposits in the perspective, and a higher gas-to-oil ratio of the well production, reaching 200 m3/ton and more.

As high-pressure gas sources, either existing or newly drilled gas wells can be used, as well as oil wells transformed into gas wells.

The Gaslift gas flow control system includes the following

	tripping unit
	measurement unit
	gas flow control units
	outlet units
	automatic control units (controllers)
	a distributed gas heating system, providing hydrate suppression in pipelines, valves and differential pressure gauge diaphragms
	cluster security system
	software

The number of units and modules depends on the cluster configuration and is to be agreed upon with the customer.

MAIN FUNCTIONS OF THE GASLIFT AUTOMATED CONTROL SYSTEM

	Control and monitoring of the cluster wells in the continuous or periodic gas lift mode
	Development of control commands for the gas lift equipment actuators in accordance with the tasks set
	Accumulating information about the wells operation and gas lift equipment
	Statistical reports drawing up
	Generation and transmission of alarm signals and commands

MAIN CHARACTERISTICS OF THE EQUIPMENT

Maximum pressure in gas lines: 16 MPa

Maximum gas flow rate in a well: 80,000 m3/day

Gas flow rate range in a well: 200,000 m3/day

Maximum gas and liquid mix flow rate of a well in the outlet units: -up to 100 tons/day

Maximum pressure in the well flow line after an outlet unit: -up to 5 MPa

Maximum number of wells processed by Gaslift Control System: - 10

Operating mode of Gaslift control system: round-the-clock

Operating temperatures range: - 55 to 50 °C

Average service life: 10 years

ADVANTAGES OF THE SYSTEM

	A comprehensive and flexible nature of the system structure, allowing operating gas lift facilities in any configuration and easily transformable as new wells are included into the system or non-productive wells are excluded
	Possibility of 100% use of the equipment with any number of wells contained in a cluster (from 1 to 15)
	Possibility of using different modes of continuous and periodical gas lift, both compressor-free (the basic option) and compressor-based modes
	Possibility of operation in an entirely autonomous automatic mode (an unmanned technology) with automatic well re-starting after stopping in an emergency situation (electric supply discontinuance, etc.)
	Raising the well productivity and oil extraction rate due to optimization of oil production and cost reduction (2 – 5 times)
	Recovery of productivity of inefficient wells
	Simple and convenient assembly and disassembly, user-friendly maintenance and the related low maintenance costs
	Sharp reduction in energy intensity
	Sharp increase in the time between well overhauls
	High competitive ability – low production cost (3-10 times lower than that of the existing similar systems), with the system being more technologically advanced, especially for operation in the Far North regions using the compressor-free gas lift technology
	Possibility of joining an automated process control system with centralized remote control
	Possibility of optimizing the operating modes of gas lift wells using software with the pre-set working rate
	In the compressor-free option, the system does not require the obligatory use of gas separators, gas preparation and drying units and traditional gas heaters
	The system makes use of a unique method and a device, patented by a Russian patent and foreign patents

For receving of image file of connected method click here

For order registry click here